涟源市砂、页岩地区滑坡的稳定性影响因素与形成机制分析——以伏口镇万寿村滑坡为例

Analysis of Stability Influencing Factors and Formation Mechanism of Landslides in Sand and Shale Areas in Lianyuan City——Take the Landslide in Wanshou Village,Fukou Town as an Example

砂、页岩分布区是涟源市滑坡易发层位。本文以涟源市伏口镇万寿村大型滑坡为例,从地质环境条件角度综合论述了滑坡的形成机制和稳定性影响因素。研究表明,降雨是诱发滑坡的主要因素,滑坡区土体具有膨胀性、膨胀土分布的平面位置和深度不均一是导致滑坡区房屋受损程度不一致的次要因素。

The distribution area of sand and shale is the prone layer of landslide in Lianyuan City.This paper takes a large-scale landslide in Wanshou Village,Fukou Town,Lianyuan City as an example,and comprehensively discusses the formation mechanism and stability factors of the landslide from the perspective of geological environmental conditions.Studies have shown that rainfall is the main factor inducing landslides,and the soil in the landslide area is expansive,and the distribution of the expansive soil is uneven in the plane position and depth,which is a secondary factor that leads to the inconsistent degree of damage to the houses in the landslide area.